Oil burner



EL BITTNER on. BURNER INVENTOR ATTORNEY MW. 2. om, m, 5J qw S L n v e A ,.0 h S m Z Y um n 5 2 @u .s w f, R R .V u UND 7. mwd 2 ,f T m fm n B w B u N YA.. O m .1. F 6. 2 man. Zul///Jlllll 3 ATTORHE .-.W .e Pateiiter... 2Q, las@ an srarss ALFRED BITTNER, OF PHILADELPHA, PENNSYLVANIA.

OIL BURNER.

Application led November 27, 1925. Serial No. 71,748.

To all w/ztomfz't muy concern.'

:le it known that l, ALFRED BITTNER, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful improvements in Oil'Burners, of which the following is a specification. lI'his invention relates to oil burners, and more particularly to a device which is adapt-- ed for placement on the grate of a standard heating furnace. The object of the invention is to provide an oil burner which is readily adapted for converting the standard hot air, hot water or steam heating` coal-lire furnace, into anoil fire furnace, without disturbing or changing any parts thereof.

Another object of the invention is to provide an oil burner structure as specified, which is adapted for projecting the fuel oil in a concentric spray and thereby distributing the fuel oil equally against thek heated vaporizing surfaces in said burner, and efr fecting the complete combustion of the fuel oil in a. noiseless manner.

A further object of the invention is to provide an oil burner structure as specified, which is simple in construction,cheap to manufacture, readily installed, and highly efficient for the purpose intended.

j @ther objects 'of the invention will appear in the following detail description, and in the accompanying drawings, wherein:

Figure 1-is a view in elevation of the burner disposed on a grate forming part of a {ire-box.

Figure Q-is a top plan of the burner partly in section.

Figure 3-is a longitudinal section through the burner.

Figure -is a longitudinal sectional View of the manifold per se Ataken on the line t-4 of Figure 5.

Figure 5-is a cross sectional view through the manifold on the line 5 5 of Figure 4.

Figure G-is a detail view showing the adjusting bolts for securing the burner cone to the base member.

Figure 7-is a detail sectional view of the spray nozzle of the oil burner.

Figure S-is a section on the line 8 8 of Figure 7.

Referring more particularly to the drawings, the oil burner 1 which is disposed in the iirebox 2 and on the grate 5, of a furnace 4, comprises a base member. 5 having a cupped center portion 6 which is centrally apertured to receive the fuel supply pipe "7, and a similal1 aperture to one side of the supply pipe 7 for receiving an overflow pipe line 8. Equally spaced on the radii for1ning part of the wall of the cupped center portion 6, are a plurality of bosses orflugs 9, which are adapted for placement thereon of the burner cone 10 and adjustably secured by means of the slotted lugs 11 on the yperimeter' of the cone 10, by means of suitable adjusting `bolts 12. The bosses or lugs 9 provide a three-'point supporting medium for the'burner cone 10, and is particularly adapted to permit the adjusting of the burner cone 10, on a true level, as well as raising or lowering of the cone which is an import ant feature. In this device, due to the fact that anv elevating or raising of the burner cone in closer` relation to the manifold 13, the pressure of the air flow or drafty is increased, and thereby retards and decreases the amount of air which can pass over and around the burner cone. Similarly adjusting the burner cone to a lower posi'- tion, decreases the pressure of the flow of air by permitting a greater amount of air to pass over and around the burner cone.

j The manifold 13 which is substantially of an inverted W configuration, is disposed in the recesses 14;, provided. at each end of the base member 5 and bridges over the burner cone 10 and adapted for vaporizing the fuel spray when preheating and also to direct the air flow downwardly on the burner cone 10, by means of the centrally depending outlet port 15. The said manifold 13 is further provided with a central and integrally j formed dividing wall 16 which extends longitudinally throughout its entire length. Said dividing wall 16 is particularly adapted to present a greater surface area for contact with the air flow, and preheating said air flow after the manifoldl has been heated. The burner cone 10 is centrally apertured as at 17, and said aperture tapered so as vto provide for the insertion therein of a similarly tapered nipple 18 which depends from the underside of the spray nozzle 19. Said nozzle is also suitably apertured and counterbored, as at 2O and 21, and the face of the upper rim 22 thereof is provided with a plurality of vertical spacing projections 23, and forming a plurality of spray apertures 24 when the notched cone disc 25 is secured thereon by means of suitable screws 25.

yThe burner cone 10 is also provided with a pair of concentric grooves 26 on its upper face and surrounding the spray nozzle 19, Said groove 26 is adapted to retain a` certain amount of fuel oil which may be ignited for preheating the manifold 13 when it is desired to put the oil burner into operation From the foregoing, it will be readily apparent that I have provided a simple oil burner mechanism to which fuel oil is fed by gravity means, and which can be readily installed with a minimum amount of time and effort without changing or otherwise altering a coal-fire heating unit, and the spray nozzle of said oil burner is adapted to be readily removed without disturbing the burner proper when it is desired to clean or change nozzles therein, and while I have shown and described one practical embodiment of my invention, it is to be understood that I do not desire to be limited to the exact construction as set forth, but consider myself at liberty to make such changes and modifications as fairly fall within the scope of the appended claims.

l/Vhat I claim is: n

Il. An oil burner comprising a base having an oil inlet, an overflow outlet adjacent thereto, a cupped recess in said base, a burner cone adjustably secured in said recess, a pair of air inlet ports in the upper side of said base, a manifold positioned in said air inlet ports and bridging said burner cone, an air preheating chamber in said manifold, a spray nozzle detachably and centrally disposed in said burner cone, and an air outlet port bending centrally from said manifold for directing the preheated lair on said burner cone and spray nozzle.

2. An oil burner comprising base having an oil inlet, an overflow outlet adjacent thereto, a cupped recess in said base, a burnerv cone adjustably secured in said recess, a pair' of air inlet ports in the upper side of said base, a manifold positioned in said air inlet ports and bridging said burner cone, an air preheating chamber in said remesa manifold, a spray nozzle detachably and centrally disposed in vsaid burner cone, an air outlet port bending centrally from said manifold for directing the preheated air on said burner cone and spray nozzle, and a pair of concentric oil retaining grooves for preheating said manifold when the oil therein is ignited. Y

8. An oil burner comprising a base having an oil inlet, an overflow outlet adjacent thereto, a cupped recess in said base,a plurality of lugs formed in said recess, a burner cone adjustably secured on said lugs, a pair of inlet ports in the upper side of said base, a manifold positioned in said ports and bridging said burner cone, an air preheating chamber in said manifold, a spray nozzle detachably and centrally disposed in said burner cone, an air outlet port depending centrally from said manifold, a pair of concentric oil retaining grooves in said burner cone for preheat-ing said manifold, l and means embodied in said spray nozzle -for projecting the fuel oil in a concentric manner.

fl. An oil burner comprising a baseV having a cupped recess centrally formed therein, an oil inlet and an overflow outlet in said recess, a plurality'of spaced lugs formed on the sides of said recess, a burner cone adjustably secured to said lugs, a pair of oil retaining grooves formed in the upper face of said cone, a spray nozzle detachably and centrally positioned in said cone, saidV nozzle adapted to project the fuel oil for forming concentric flame, an air inlet opening formed in each end of said base, a manifold bridging said burner cone and nozzle, and the two outer'ends thereof positioned in the said openings, and a wall formed integrally in said manifold on the longitudinal center line thereof for providing a greater contact area for preheating the air supply.

In testimony whereof I aflix my signature.

ALFRED -BITTNER 

